In a certain dynasty, the "Xuan Yang Sutra" suddenly appeared in the world. For a time, the world was in turmoil. The evil sects and good sects coveted this book. It is said that obtaining the sutra will not only lead the world in martial arts, but also reveal shocking secrets...
What is the secret of Xuanyang Sutra? Where is the Xuanyin Sutra now? What is Yang Zixiu's identity? Why is Cheng Xue being hunted?